I've done that the other direction and as I recall the station is the same.
I think you have to change because Spanish and French trains use different
gauge tracks.

"John" wrote in message
...
I don't understand how to move between Hendaye and Irun and on what train.
We take a Spanish train from San Sebastian to Irun, then get off and then
travel somehow to Hendaye and get on a French train from Hendaye to Paris?
How does this all work?